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[1]黄志良,鲁冕,石月,等.碱土掺杂硅酸镧电解质材料的制备与性能[J].武汉工程大学学报,2012,(11):44-49.[doi:103969/jissn16742869201211010]
　HUANG Zhi liang,LU Mian,SHI Yue,et al.Preparation and performance of Lanthanum silicate electrolyte materials doped alkali earth[J].Journal of Wuhan Institute of Technology,2012,(11):44-49.[doi:103969/jissn16742869201211010]
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碱土掺杂硅酸镧电解质材料的制备与性能(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年11期
页码:
44-49
栏目:
资源与土木工程
出版日期:
2012-12-10

文章信息/Info

Title:
Preparation and performance of Lanthanum silicate electrolyte
materials doped alkali earth
文章编号:
16742869(2012)11004406
作者:
黄志良1; 鲁冕1; 石月1; 詹刚1; 陈巧巧1; 吴博1; 陈亚男1; 池汝安2
1．武汉工程大学材料科学与工程学院，湖北 武汉 430074；
2．武汉工程大学化工与制药学院，湖北 武汉 430074
Author(s):
HUANG Zhiliang1;  LU Mian1;  SHI Yue1;  ZHAN Gang1;  CHEN Qiaoqiao1; WU Bo1;  CHEN Yanan1;  CHI Ruan2
1.School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China;
2. School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
磷灰石型固体电解质; 硅酸镧; 碱土掺杂; 燃烧法; 电导率
Keywords:
apatite type solid electrolyte;  lanthanum silicate;  alkali earth doping;  combustion;  conductivity
分类号:
TM911;Q611.4
DOI:
103969/jissn16742869201211010
文献标志码:
A
摘要:
采用尿素-硝酸盐燃烧法在600~800 ℃下制备了较高纯度无杂质相的碱土掺杂磷灰石型La9.33Mx(SiO4)6O2+δ（M为Sr, Ca, Mg）电解质.通过X射线衍射、扫描电镜和交流阻抗测试，对样品的晶体结构、表面微观形貌及电导性能进行了研究.结果表明，燃烧合成的电解质粉体La9.33(SiO4)6O2（LSO）具有p63/m磷灰石型晶体结构；LSO烧结体的微观形貌随x值的不同而出现了细微变化；LSO烧结体具有良好的电阻可逆性和稳定性.适当的掺杂量能有效提高LSO的离子电导率，最佳掺杂浓度为0.2.相同掺杂量下，三种碱土金属阳离子掺杂对电导性能也有一定的影响，随着离子半径的增大，掺杂效果越来越好.
Abstract:
The ureanitrates combustion was introduced to prepare the high purity apatite type alkali earth doped La9.33Mx(SiO4)6O2+δ(M are Sr, Ca and Mg) conductor at 600-800 ℃. The asprepared samples were investigated by XRay Diffraction, Scanning Electron Microscope and Electrochemical Impedance Spectroscopy. The results show that the powders transform into p63/m apatitetype after burning. The microcosmic appearance of sintered LSO is altered with the different doping content x. LSO sintered body possesses excellent resistors reversibility and stability. The conductivity is improved efficiently with the doping amounts of the alkali earth metal ions, and the optimal doping content is 0.2. Under the same doping contents, three kinds of alkali earth metal ions also have effects on the anductivity performance. As the ionic radius increases, doping effect becomes better.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20120726基金项目：湖北省自然科学重点基金(No.2011CDA050)；国家973预研项目(No. 2011CB411901)；教育部长江学者与创新团队项目(No. IRT974)作者简介：黄志良（1964），男，安徽望江人，教授，博士.研究方向：功能材料.
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